Apple has native sleep tracking now and I've been using it myself for years. I would like to warn you that you shouldn't trust the waterproofing although, beca

Apple has native sleep tracking now and I've been using it myself for years. I would like to warn you that you shouldn't trust the waterproofing although, because they use glue to seal the watch screen against the gasket, and temperature variations can eventually loosen that glue, as I found out to a broken series 3 watch one day after swimming in a heated swimming pool and then going skiing the next day. Apple health is one of the few things they actually end to end encrypt[0], so there is no data to sell currently. [0] They should E2EE everything on icloud, including imessage backups, which they don't, but I suspect there is some covert US govt pressure stopping them from doing so. https://bgr.com/2020/01/21/iphone-icloud-backup-isnt-fully-encrypted-and-its-the-fbis-fault/ https://bgr.com/2020/01/21/iphone-icloud-backup-isnt-fully-e...